syslog: fix incorrect use of sizeof() in vsnprintf()

diff --git a/syslog.c b/syslog.c
index dbb7a5a..7a2839e 100644 (file)
--- a/syslog.c
+++ b/syslog.c
@@ -142,7 +142,7 @@ void log_printf(char *fmt, ...)
                if (!buffer)
                        return;
                va_start(ap, fmt);
-               n = vsnprintf(buffer, sizeof(buffer), fmt, ap);
+               n = vsnprintf(buffer, buffer_len, fmt, ap);
                va_end(ap);
                if (n < 1)
                        return;